1967.0000000;-1.0449799
1968.0000000;0.6766726
1969.0000000;-0.2526174
1970.0000000;-0.4951096
1971.0000000;-0.8289638
1972.0000000;0.1791121
1973.0000000;-0.8666533
1974.0000000;-0.7506190
1975.0000000;0.1933620
1976.0000000;-1.0375271
1977.0000000;0.3916817
1978.0000000;0.3989300
1979.0000000;-0.5730468
1980.0000000;-0.0835490
1981.0000000;-0.2176339
1982.0000000;-0.4898416
1983.0000000;-0.2303397
1984.0000000;0.8557035
1985.0000000;-0.2116124
1986.0000000;-1.2623702
1987.0000000;-0.2971057
1988.0000000;0.0019337
1989.0000000;-1.5382469
1990.0000000;-0.7515686
1991.0000000;-1.0096002
1992.0000000;-0.7310885
1993.0000000;-0.5283835
1994.0000000;-0.2124703
1995.0000000;0.4562105
1996.0000000;-0.0347295
1997.0000000;-0.1340864
1998.0000000;-1.4139895
1999.0000000;-0.4741196
2000.0000000;-0.8106245
2001.0000000;0.5436812
2002.0000000;0.1174428
2003.0000000;-2.2363229
2004.0000000;-2.0775476
2005.0000000;-2.1238778
2006.0000000;-1.6035001
2007.0000000;-0.9575360
2008.0000000;-0.8369290
2009.0000000;-1.8606668
2010.0000000;-0.5971999
2011.0000000;-1.9801028
2012.0000000;-1.8151395
2013.0000000;-0.4466200
2014.0000000;-0.8473969
2015.0000000;-1.6456449